Graphical user interface for a display screen



FIG. 1 is a perspective view of a graphic user interface for a display screen of the present invention; and,

FIG. 2 is a front view thereof, the graphic user interface is shown separately for clarity of illustration.

The broken line drawing of a display screen in FIG. 1 is for illustrative purposes only and forms no part of the claimed design. 

The ornamental design for a graphical user interface for a display screen, as shown and described. 